baber/WOPTO huggingface dataset:
Patent GB-2223360-A (GB)
Title: Waveguide mode filter
Inventor: MASSEY R PETER JOHN
IPC: H01P1/16
Filed: 1988-09-28
Abstract: A waveguide mode filter arranged to modify the passage along a waveguide of at least two propagating waveguide modes relative to one other, comprising within the waveguide (2) a contiguous sequence (10) of respective dielectric regions (11, 12) with interfaces (13) in the form of transverse sections of the waveguide each between two regions of mutually different dielectric constant. An embodiment for extending the frequency range of an H-plane sectoral-horn direction-finding antenna 1 is described. Receiver 8 is coupled to the rectangular waveguide via a probe 4 symmetrically located to reject even-order modes, and the filter is arranged to transmit the TE(1, 0) mode but to reflect the TE(3, 0) mode. <IMAGE>
Patent GB-2224598-A (GB)
Title: Piezoelectric shear mode accelerometer
Inventor: WHATMORE ROGER WILLIAM
IPC: H01L41/113
Filed: 1988-11-02
Abstract: An accelerometer consists of a piezoelectric plate 33 having on its upper face a pair of spaced electrodes 37, 39, having on its lower face a common back electrode 35, and having a mechanical support 41 centrally located beneath the lower face. The polar axis 34 of the piezoelectric material lies in the plane of the plate 33 and orthogonal to the central support 41. The arrangement compensates for spurious pyroelectric signal and is relatively insensitive to the alignment of the polar axis. Accelerometer sensitivity may be enhanced by increasing the inertial mass loading. This may be accomplished by attaching weights or by ensuring that piezoelectric material extends outwardly beyond limits defined by the electrodes. The plate 33 may be of ceramics piezoelectric material, for example, lead zirconate titanate. Alternatively, it may be of single crystal piezoelectric material, for example, lithium niobate, lithium tantalate, barium titanate, lead titanate or lead metaniobate. <IMAGE>
Patent GB-2213917-A (GB)
Title: Ceramic munitions projectile
Inventor: DINKHA BRIAN I
IPC: F42B12/74
Filed: 1989-02-28
Abstract: A ceramic munitions projectile (10), particularly useful for practice or target munitions. The projectile is preferably made of zirconia which is densified by a pressureless sintering method. The projectile has sufficient toughness to withstand acceleration and torque creating during projectile firing and trajectory. <IMAGE>
Patent GB-2216620-A (GB)
Title: Expansion bolt assembly
Inventor: WHITE PETER JOHN
IPC: F16B13/06
Filed: 1989-03-20
Abstract: In an expansion bolt assembly, an expansible sleeve 31 has an internally directed detent shoulder 35 and a threaded expansion nut 21 has a detent shoulder 25, such that when the nut 21 is inserted in the sleeve 31, the shoulders 25, 35 engage so that loss of the nut 21 through the open end of the sleeve 31 is obviated. The bolt 11 is used to draw the nut 21 into the sleeve 31 to expand it for anchoring the assembly in a hole in a structure. In a further embodiment, the sleeve 31 is formed from a flat plate by rolling; the detent 35 is formed by turning one end of the plate back on itself before the rolling. The sleeve is made of stainless steel. <IMAGE>
Patent GB-2220943-A (GB)
Title: Rhoptry antigen of plasmodium falciparum
Inventor: SMYTHE JASON ARTHUR
IPC: C12P21/00
Filed: 1988-12-01
Abstract: A rhoptry antigen of the asexual blood stages of Plasmodium falciparum, is characterised by: (i) having an apparent molecular weight of approximately 55kDa; (ii) being a glycoprotein incorporating myristic acid; (iii) being present in a restricted localisation with merozoites consistent with a rhoptry location; and (iv) being extracted into the detergent phase when parasite antigens are separated by phase partitioning with detergent.
Patent GB-2225979-A (GB)
Title: Method and apparatus for securing clasps to envelopes
Inventor: DODERER-WINKLER ALFRED W
IPC: B31B50/00
Filed: 1989-09-04
Abstract: A method and apparatus is provided for fastening clasps (19) to bags or envelopes (10) during the manufacture thereof. The clasps (19) are secured to the conveyed envelope blank immediately after a folding step in which lateral side flaps (13, 14) of the envelope blank are folded over to form a rear wall (12). The apparatus for securing the clasps is disposed at the downstream end (21) of the folding machinery (20, 23), and has a stationary abutment or support (6) against which prongs of the clasps (19) are bent as the fastening proceeds. The clasps are fed to the envelope rear wall by a rotating wheel (4) which forces the prongs through the overlap zone (16) of the rear wall flaps (13, 14) and co-operates with inclined curved guide surfaces (42, 43) of the support (6) to bend the prongs gradually outwardly. …<IMAGE>…
Patent GB-2223170-A (GB)
Title: Two-part depilatory composition
Inventor: JOHNSTON RICHARD
IPC: A61K8/81
Filed: 1989-09-25
Abstract: A two-part depilatory composition in which the first part comprises polyvinyl alcohol and the second part comprises a cross-linking agent which consists of borax and a polyhydroxy alcohol or of Congo red, the first or second or both parts additionally containing a depilatory agent, the two parts containing such proportions of the ingredients specified that when the parts are mixed in such proportions that there is sufficient borax or Congo red to effect cross-linking of the polyvinyl alcohol, the mixed composition contains sufficient depilatory agent to effect depilation in an acceptable period and, when the second part comprises borax, sufficient polyhydroxyl alcohol to moderate the rate of cross-linking.
Patent GB-2234144-A (GB)
Title: Apparatus for a vdu screen filter to reduce reflections on the vdu screen
Inventor: WATKINS DAVID
IPC: H01J29/89
Filed: 1989-10-26
Abstract: When a flat filter (3) is fitted to a curved screen surround (1), light is able to pass around the edges of the filter (3) and causes reflections on the screen. The apparatus comprises one or more strips or bands (5, 7) of material for fitting along or around the edges of the filter (3) to occlude the gaps between the filter (3) and the screen surround (1) and so reduce these reflections. The apparatus may comprise substantially rigid plastics extrusions (5) and/or a band of flexible material (7) together with attachment means (6, 8) such as Velcro (trademark), and mounting means (11) as appropriate. The band of flexible material (7) is able to twist and so accommodate variations in the width of the gap between a flat filter (3) screen and a curved side of a screen surround (1). A similar band (7) may also be used to occlude a gap of varying width between other articles.
Patent GB-2240052-A (GB)
Title: Process and catalyst for reducing carbon monoxide to methanol
Inventor: VAN DIJK ARJAN
IPC: B01J31/14
Filed: 1990-01-18
Abstract: A process for the preparation of methanol involves contacting a gaseous mixture comprising carbon monoxide and hydrogen with a novel catalytic system formed by combining a) a copper salt, b) an alcohol, and c) a complex hydride, and allowing the combined components to react. The exemplified salt is copper acetate, the hydride is preferably sodium borohydride and the alcohol pentanol or 2, 4, 6 trioxanonane.
Patent GB-2243380-A (GB)
Title: Hollow block walls
Inventor: MILNES JULIAN
IPC: E04B2/20
Filed: 1990-04-27
Abstract: A device for use in preventing wet mortar in a vertical joint (43) in a hollow block wall sliding into a hollow (42) in a block (41) comprises a member having an upright portion (20) and at least one lateral portion (21) for catching mortar sliding down, with the upright portion (20) and/or the lateral portion or portions provided with means (22) for keying to mortar. The device may form one end of a wall tie. <IMAGE>
Patent GB-2234121-A (GB)
Title: A female connector for receiving plug contacts in two orientations
Inventor: AMIOT JACQUES HENRI JULIEN
IPC: H01R27/00
Filed: 1990-06-19
Abstract: A female connector (1) for an electric wire (2) can receive contacts of an electric iron or a stand for the iron, and includes socket contacts (7) adjacent openings (10,11). Each socket contact (7) can receive a plug pin inserted in either corresponding opening (10,11). The openings (10, 11, 11') are distributed in two series respectively in two transverse faces (12, 13) of casing (6). <IMAGE>
Patent GB-2236180-A (GB)
Title: Detection of bubbles in flowing liquids
Inventor: CASHMORE PETER ROSEBY
IPC: B67D1/12
Filed: 1990-08-14
Abstract: Bubbles in a liquid such as beer flowing through a duct (5) are detected by means of a beam of light (17) or similar radiation passing transversely through it to a sensor (20). To achieve maximum fluctuation in the output of the sensor, the beam normally grazes an opaque barrier (19) but strikes the barrier when the beam is diverted by the presence of a bubble. The output of the sensor is monitored through successive observation periods, and the proportion of each observation period during which the output exceeds a predetermined value is calculated. if the proportion exceeds a predetermined value a signal is generated e.g. to close a cut-off valve. The device can distinguish between a few small bubbles and a large bubble or swarm of bubbles, particularly the bubbles that precede fob in beer, thus enabling flow to be quickly stopped. <IMAGE>
Patent GB-2250123-A (GB)
Title: Display devices
Inventor: RYAN MELVIN JOHN
IPC: G09F7/20
Filed: 1990-11-23
Abstract: A display device comprises a support mechanism which is attached to the inside of a window in which the display is to be made and a message-bearing portion of the display which is detachably attached to the support mechanism by means of a freely adjustable attachment mechanism. The support mechanism is suitably the shaft portion 3 of a roller blind mechanisms and the message-bearing portion 6 is supported by this shaft portion by means of one or more clear gut threads 4. The portion 6 is detachably attached to a plastic strap 5 by means of a Velcro attachment means. <IMAGE>
Patent GB-2251555-A (GB)
Title: Seamed tennis ball and a process for its manufacture
Inventor: PRICE DEREK MALCOLM
IPC: A63B45/00
Filed: 1991-01-09
Abstract: A seamed tennis ball is formed by applying a mask 9 in the form of a seam to a core 2, applying adhesive at a station 10 removing the mask and flocking the adhesive surface with fibres and finally removing excess fibres and drying the adhesive at stations 14 and 15 respectively. <IMAGE>
Patent GB-2254662-A (GB)
Title: Assembling a dip tube on an aerosol valve.
Inventor: PROKOPIUS JOSEF PETR
IPC: B65B7/01
Filed: 1991-02-12
Abstract: A machine for inserting dip tubes into or onto aerosol valves has a toothed pulley (1) provided with circumferential groove (2) to accommodate the dip tube (3), an endless timing belt (4) passing round part of the pulley (1) to grip the dip tube (3) in the groove (2). By rotary movement of the toothed pulley (1) the dip tube (3) is forced into or onto the aerosol valve (5), then a length of the dip tube and aerosol valve assembly is driven out, away from the pulley (1), and the dip tube cut to required length by cutter (6). <IMAGE>
Patent GB-2243188-A (GB)
Title: Apparatus for open-loop or closed-loop hydraulic flow control
Inventor: LINDECKERT PETER
IPC: B62D6/00
Filed: 1991-03-25
Abstract: The apparatus is characterised by a spring or springs 23, (30, Fig 3) of a shape memory alloy. Only at relatively high temperature do these springs 23, 30 develop notable actuating forces, by which an only relatively slightly throttled connecting path 8 between delivery side 15 and intake side 14 of a pump 2 is opened and a pressure relief valve 10 may be opened. <IMAGE>
Patent GB-2248596-A (GB)
Title: Decelerator apparatus
Inventor: KANKKUNEN MATTI
IPC: A62B1/12
Filed: 1991-05-10
Abstract: This publication discloses a decelerator for the retardation of the movement of different kinds of loads, particularly for the retardation of a load-bearing rope or cable. The invention is based on producing the braking effect by way of throttling a fluid flow, which is forced into movement by means of two pistons (3). The pistons (3) are movable within a dual-chamber cylinder (19, 20) along the longitudinal axis of the cylinder. The pistons (3) are moved by means of pegs (9) protruding into sine-shaped meandering grooves (16) fabricated onto the surfaces of the pistons. The grooves (16) and the pegs (9) are arranged so that the movements of the pistons (3) are compliant with an identical function defined by the shape of the groove (16), however, there being a phase shift of approx. 15 DEG between the mutual positions of the pistons (3). This arrangement achieves a smooth braking effect, because there is a continuous flow at the throttling point (5) even at the moments of direction reversal in the movement of the pistons (3).
Patent GB-2244648-A (GB)
Title: Pile mat for the elimination of insects on pets
Inventor: ANDERSON SOEREN
IPC: A01K1/035
Filed: 1991-05-17
Abstract: A pile mat for the elimination of insects on pets, for use indoors as well as outdoors, is treated with an insecticide which may be dispensed from the mat to the pet resting on the mat. The surface of the pile mat is impregnated with an insecticide for dispension thereof by contact with said surface and/or by slow evaporation from said surface. The pile mat has a water proof backing and a napped primary texture fastened thereto, whereby the nap yarns and the primary texture have been supplied with the insecticide.
Patent GB-2256641-A (GB)
Title: Hydroformylation of alpha olefins
Inventor: DRENT EIT
IPC: C07C45/50
Filed: 1991-06-14
Abstract: A process for the preparation of aldehydes by hydroformylation of an alpha alkenically unsaturated compound having at least 5 carbon atoms, in which the alpha alkenically unsaturated compound is contacted with a carbon monoxide source and a hydrogen source in the presence of a catalytic system comprising a) palladium, a palladium compound, platinum and/ or a platinum compound, b) a weakly or non-coordinating anion, and c) a bidentate phosphorus, arsenic or antimony ligand, characterized in that the bidentate ligand is selected from the group of compounds of the general formula R<1>R<2>-M<1>-R-M<2>-R<3> R<4>, wherein M and M<2> independently represent phosphorus, arsenic or antimony, R represents a divalent bridging group having at least two atoms in the bridge, and R<1>, R<2>, R<3> and R<4> independently represent an optionally substituted aromatic group with the proviso that at least one of R<1>, R<2>, R<3> and R<4> carries an electron-donating substituent.
Patent GB-2256837-A (GB)
Title: Swivel and retractable locking apparatus for bicycles
Inventor: PATERSON GORDON NOEL
IPC: E05B71/00
Filed: 1991-06-18
Abstract: A locking system for bicycles consists of a chain or cable made of a suitable hardened material which may be retracted into a hardened metal tube when not in use. When in its locking mode the cable or chain is extended from the tube against a spring within the tube and looped around a permanent object with the padlock completing the locking procedure. The tube and cable or chain can swivel from the frame of the bicycle to achieve the most convenient angle for attachment to the permanent object. <IMAGE>
Patent GB-2257957-A (GB)
Title: Control apparatus for dispensing fluids.
Inventor: JOHNSON MARTIN
IPC: B67D1/12
Filed: 1991-06-18
Abstract: In control apparatus for beverage dispense, wherein the apparatus is arranged to ensure proper ratio control between beverage and coolant or syrup and carbonated water, paddle elements 5, 7 are arranged in respective enclosures 1, 3, the paddle elements 5, 7 being coupled in order to ensure co-ordinated rotation such that paddle sweep results in correct proportion dispense between enclosures 1, 3. <IMAGE>
Patent GB-2253824-A (GB)
Title: Trailer coupling means
Inventor: SUITOR ROBERT
IPC: B60D1/38
Filed: 1991-09-13
Abstract: Trailer coupling means comprises a mounting plate (10) for securing to a drawbar (8) of a trailer vehicle. The drawbar (8) carries a socket hitch (6) with the mounting plate (10) sandwiched therebetween. A winch arrangement is mounted on the mounting plate (10). The winch arrangement has a reel (14) on which a length of cable (16) is wound, the free end of which is provided with a fastening (18) to be engageable over a ball (4) of a ball hitch mounted on a towing vehicle. Means in the form of a cranked handle (22) is provided for operating the winch arrangement. <IMAGE>
Patent GB-2248610-A (GB)
Title: Absorption of hydrophobic liquids
Inventor: ROBSON DAVID JAMES
IPC: B01D15/04
Filed: 1991-10-03
Abstract: A method of absorbing hydrophilic water-immiscible liquids (e.g. oil) by using cellulosic plant material which has been modified by reaction of hydroxyl groups (e.g. by esterification) to render the material relatively more absorbent to hydrophobic liquids.
Patent GB-2249321-A (GB)
Title: Apparatus for transferring knitted fabric from circular knitting machine
Inventor: EGEA NOEL
IPC: D04B15/92
Filed: 1991-10-22
Abstract: In a circular knitting machine the fabric W is guided downward around a conical nozzle 40 and fed downward in a twisting-preventive guide cylinder 35 rotating in synchronism with the needle cylinder and air is ejected downward from openings 45 around the nozzle to press the fabric against the inner surface of the guide cylinder 35. The fabric is received on a conical gripper 49 and is then removed from the machine by a pickup mechanism 66-71. The nozzle 40 is supplied with air through the dial 15. A further air supply through an annular passage 29 produces a downward flow from openings 32. The gripper 49 cooperates with a holding ring 54. Arms 68 are pivoted about an axis 67 so that rods 71 engage the fabric in the region of the gripper 49. The gripper is then moved clear by displacing means 55-64 and the arms 68 are swung back carrying the fabric to the Fig 1 position. In another embodiment the gripper 49 is carried by a swinging lever arrangement. <IMAGE>
Patent GB-2262147-A (GB)
Title: A cable bolt for stabilising rock strata
Inventor: TAKE DEREK
IPC: E21D21/00
Filed: 1991-12-03
Abstract: A cable bolt (1) has a cable element (8) composed of plaited wires (6, 7), and having an internal passage (9) partly occupied by a rigid tube (17) provided with a connection (11) incorporating a non-return valve (22) so that bonding material can be passed along the internal passage (9) and between the wires (6, 7) of the cable element (8) to enter the annular gap between the bolt and the bore (12). A securing head (13) expands to engage the borewall (12), and incorporates a second non-return valve (and/or a bursting disc) which opens when high pressure is built up in the passage (9) to admit bonding material to the inner end of the bore (12). A member (15) prevents backflow, and an element (20) ensures mixing. <IMAGE>
Patent GB-2250777-A (GB)
Title: Espagnolette
Inventor: BAUNSGAARD PER
IPC: E05C9/22
Filed: 1991-12-03
Abstract: An espagnolette (1) for bolting doors or window sashes when closed comprises a housing (2) with a control means by means of which an operating rod (3) can be displaced in its longitudinal direction proportional to the housing (2). The operating rod (3) is connected with the door or window sash by moans of sliding shoes (4) and has locking pins (5) for engagement with a strike in the door or window sash. The operating (3) has an essentially C-shaped section so that its outwards open interior through an oblong slot can engage and secure the shoes (4) and part of the housing (2) slidingly in the longitudinal direction of the rotating rod. Through this measure the built-in width of the device is determined by the width of the operating rod, and the rod is not weakened by perforations for the shoes. <IMAGE>
Patent GB-2251204-A (GB)
Title: Loudspeakers
Inventor: LEACH PATRICK ARTHUR
IPC: H04R31/00
Filed: 1991-12-11
Abstract: A method of making a loudspeaker cone and flexible surround assembly comprising arranging an injection moulded plastics cone (1) in the mould cavity of an injection moulding apparatus and injection moulding an elastomeric material onto the periphery of the cone under heat and pressure to form a surround or suspension (2) which is chemically bonded to the material of the cone. The invention is also a loudspeaker cone and surround assembly wherein the surround is an injection moulding formed directly on to the cone. <IMAGE>
Patent GB-2253208-A (GB)
Title: Cyclohexenyl compounds and photocurable resin compositions prepared therefrom
Inventor: SATO HIROYUKI
IPC: C07C233/09
Filed: 1992-02-14
Abstract: Photoreactive compounds of the formula:   <IMAGE> (where R1 is H, CH3 or C2H5; X is -O- or NH-; R2 is H, halogen or C1-C4 alkyl or alkoxy group, and m is 1 to 5) may be used in the preparation of photosensitive composition comprising a polymer of the said compound together with an azide compound (as photosensitivity-imparting agent). <IMAGE>
Patent GB-2266121-A (GB)
Title: I.c.engine charge intake valving
Inventor: MARSHALL JOHN REUBEN
IPC: F01M13/02
Filed: 1992-04-16
Abstract: A valve D prevents-the return of air drawn into the air filter housing G to the air intake F. Gases from the engine sump are fed to the housing G from the dip stick housing H. <IMAGE>
Patent GB-2267295-A (GB)
Title: Dispenser for elongate material
Inventor: WONG PETER
IPC: B65H59/04
Filed: 1992-05-29
Abstract: A dispenser, for dispensing from a roll 14 of elongate material 15, e.g. wire, comprises means for rotatably supporting the roll, and spring biased, pivoted lever 22 carrying spindle 26 on which material guiding sleeve 27 is rotatable. The lever pivots with varying material tension to tighten brake band 32 onto, or release the band from, pulley 17 rotating with the roll. <IMAGE>
Patent GB-2258135-A (GB)
Title: Self supporting stockings
Inventor: HUMPHREYS JOHN CHARLES
IPC: A41B11/12
Filed: 1992-06-09
Abstract: The invention provides a method of manufacturing a self-supporting stocking (1), in which the stocking is supported with the interior of a welt ring (2) facing radially outwardly of the stocking and rotated about its longitudinal axis while a silicone material is applied onto the welt so as to form a stripe around the welt. The silicone is subsequently cured. The method is carried out in an apparatus which includes a series of stocking support means (25) which can be rotated each with a stocking thereon having the interior of its welt facing outwardly. Means (30) are provided for applying silicone to stockings moved in succession to an application station by indexable turntables (11, 12), the treated stockings being passed through curing ovens (28) for curing the silicone material.
Patent GB-2257278-A (GB)
Title: Security and information display.
Inventor: ESCRITT CHRISTOPHER GEORGE
IPC: G06K17/00
Filed: 1992-06-29
Abstract: An antipilferage tag includes microcircuitry enabling data communication between the tag and a host computer whenever the tag is interrogated by the host computer. The tag can be used for price display, stock control, theft detection and check-out price totalling.
Patent GB-2277451-A (GB)
Title: A diving computer and mask combined
Inventor: MCKAY PETER JOHN
IPC: A62B18/08
Filed: 1993-05-01
Abstract: A diving mask 1 has a computer 2 which automatically projects relevant dive information onto the faceplate 4 at position 3 so that the diver need only look up from his/her normal field of view and see the relevant information reflected onto the faceplate. <IMAGE>
Patent GB-2267925-A (GB)
Title: A ballest plough.
Inventor: FELBER HANNES
IPC: E01B27/02
Filed: 1993-06-17
Abstract: A ballast plough 1 has a machine frame 2 supported on on-track undercarriages and shoulder ploughs 7, 8, each with a plough blade 11 provided on each longitudinal side of the machine. The shoulder ploughs 7, 8 are transversely and vertically adjustable by means of drives 14, 16, and are each secured to a carrier frame 10, pivotably mounted on the machine frame 2, which extends perpendicularly to the longitudinal direction of the machine. Each plough blade 11 is mounted on its carrier frame 10 for rotation about a vertical axis 19 extending parallel to the plough blade plane by a rotary drive 18, and for rotation about a horizontal axis 17 by drive 22. <IMAGE>